Posted by virginia on .
assume that the volume of drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.05 liter. Using the random sample of 45 bottles. The probability is 99% that the sample mean will contain at least how much soft drink?

statistics 
PsyDAG,
95% = mean ± 2.575 SEm
SEm = SD/√n